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bullet3/Extras/Serialize/makesdna/makesdna.cpp
erwincoumans ab8f16961e Code-style consistency improvement: 
Apply clang-format-all.sh using the _clang-format file through all the cpp/.h files.
make sure not to apply it to certain serialization structures, since some parser expects the * as part of the name, instead of type.
This commit contains no other changes aside from adding and applying clang-format-all.sh
2018-09-23 14:17:31 -07:00

1355 lines
32 KiB
C++
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/// Current makesdna.cpp is a from Blender, but we will completely rewrite it in C++ under a ZLib license
/// The Original version is at https://svn.blender.org/svnroot/bf-blender/trunk/blender/source/blender/makesdna/intern/makesdna.c
/**
* $Id$
*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*
* Struct muncher for making SDNA
*
* Originally by Ton, some mods by Frank, and some cleaning and
* extension by Nzc.
*
* Makesdna creates a .c file with a long string of numbers that
* encode the Blender file format. It is fast, because it is basically
* a binary dump. There are some details to mind when reconstructing
* the file (endianness and byte-alignment).
*
* This little program scans all structs that need to be serialized,
* and determined the names and types of all members. It calculates
* how much memory (on disk or in ram) is needed to store that struct,
* and the offsets for reaching a particular one.
*
* There is a facility to get verbose output from sdna. Search for
* debugSDNA. This int can be set to 0 (no output) to some int. Higher
* numbers give more output.
* */
#ifdef __cplusplus
extern "C"
{
#endif
#if defined(_WIN32) && !defined(FREE_WINDOWS)
/* The __intXX are built-in types of the visual complier! So we don't
* need to include anything else here. */
typedef signed __int8 int8_t;
typedef signed __int16 int16_t;
typedef signed __int32 int32_t;
typedef signed __int64 int64_t;
typedef unsigned __int8 uint8_t;
typedef unsigned __int16 uint16_t;
typedef unsigned __int32 uint32_t;
typedef unsigned __int64 uint64_t;
#ifndef _INTPTR_T_DEFINED
#ifdef _WIN64
typedef __int64 btintptr_t;
#else
typedef long btintptr_t;
#endif
#else
typedef intptr_t btintptr_t;
#endif
#elif defined(__linux__) || defined(__NetBSD__)
/* Linux-i386, Linux-Alpha, Linux-ppc */
#include <stdint.h>
typedef intptr_t btintptr_t;
#elif defined(__APPLE__)
#include <inttypes.h>
typedef intptr_t btintptr_t;
#elif defined(FREE_WINDOWS)
#include <stdint.h>
#else
/* FreeBSD, Irix, Solaris */
#include <sys/types.h>
#endif /* ifdef platform for types */
#ifdef __cplusplus
}
#endif
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
//#include "DNA_sdna_types.h"
// include files for automatic dependancies
#include "DNA_rigidbody.h"
#include "LinearMath/btVector3.h"
#include "LinearMath/btQuaternion.h"
#include "LinearMath/btMatrix3x3.h"
#include "LinearMath/btTransform.h"
#include "BulletCollision/BroadphaseCollision/btQuantizedBvh.h"
#include "BulletCollision/CollisionShapes/btCollisionShape.h"
#include "BulletCollision/CollisionShapes/btStaticPlaneShape.h"
#include "BulletCollision/CollisionShapes/btConvexInternalShape.h"
#include "BulletCollision/CollisionShapes/btMultiSphereShape.h"
#include "BulletCollision/CollisionShapes/btConvexHullShape.h"
#include "BulletCollision/CollisionShapes/btStridingMeshInterface.h"
#include "BulletCollision/CollisionShapes/btBvhTriangleMeshShape.h"
#include "BulletCollision/CollisionShapes/btScaledBvhTriangleMeshShape.h"
#include "BulletCollision/CollisionShapes/btCompoundShape.h"
#include "BulletCollision/CollisionShapes/btCylinderShape.h"
#include "BulletCollision/CollisionShapes/btConeShape.h"
#include "BulletCollision/CollisionShapes/btCapsuleShape.h"
#include "BulletCollision/CollisionShapes/btTriangleInfoMap.h"
#include "BulletCollision/NarrowPhaseCollision/btPersistentManifold.h"
#include "BulletCollision/Gimpact/btGImpactShape.h"
#include "BulletCollision/CollisionDispatch/btCollisionObject.h"
#include "BulletDynamics/ConstraintSolver/btTypedConstraint.h"
#include "BulletDynamics/ConstraintSolver/btPoint2PointConstraint.h"
#include "BulletDynamics/ConstraintSolver/btHingeConstraint.h"
#include "BulletDynamics/ConstraintSolver/btConeTwistConstraint.h"
#include "BulletDynamics/ConstraintSolver/btGeneric6DofConstraint.h"
#include "BulletDynamics/ConstraintSolver/btGeneric6DofSpringConstraint.h"
#include "BulletDynamics/ConstraintSolver/btGeneric6DofSpring2Constraint.h"
#include "BulletDynamics/ConstraintSolver/btSliderConstraint.h"
#include "BulletDynamics/ConstraintSolver/btGearConstraint.h"
#include "BulletDynamics/ConstraintSolver/btContactSolverInfo.h"
#include "BulletDynamics/Dynamics/btDynamicsWorld.h"
#include "BulletDynamics/Dynamics/btRigidBody.h"
#include "BulletSoftBody/btSoftBodyData.h"
#include "BulletDynamics/Featherstone/btMultiBody.h"
#include "BulletDynamics/Featherstone/btMultiBodyLinkCollider.h"
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#define SDNA_MAX_FILENAME_LENGTH 255
/* Included the path relative from /source/blender/ here, so we can move */
/* headers around with more freedom. */
char *includefiles[] = {
// if you add files here, please add them at the end
// of makesdna.c (this file) as well
"../makesdna/DNA_rigidbody.h",
"../../../src/LinearMath/btVector3.h",
"../../../src/LinearMath/btQuaternion.h",
"../../../src/LinearMath/btMatrix3x3.h",
"../../../src/LinearMath/btTransform.h",
"../../../src/BulletCollision/BroadphaseCollision/btQuantizedBvh.h",
"../../../src/BulletCollision/CollisionShapes/btCollisionShape.h",
"../../../src/BulletCollision/CollisionShapes/btStaticPlaneShape.h",
"../../../src/BulletCollision/CollisionShapes/btConvexInternalShape.h",
"../../../src/BulletCollision/CollisionShapes/btMultiSphereShape.h",
"../../../src/BulletCollision/CollisionShapes/btStridingMeshInterface.h",
"../../../src/BulletCollision/CollisionShapes/btBvhTriangleMeshShape.h",
"../../../src/BulletCollision/CollisionShapes/btScaledBvhTriangleMeshShape.h",
"../../../src/BulletCollision/CollisionShapes/btCompoundShape.h",
"../../../src/BulletCollision/CollisionShapes/btCylinderShape.h",
"../../../src/BulletCollision/CollisionShapes/btConeShape.h",
"../../../src/BulletCollision/CollisionShapes/btCapsuleShape.h",
"../../../src/BulletCollision/CollisionShapes/btTriangleInfoMap.h",
"../../../src/BulletCollision/NarrowPhaseCollision/btPersistentManifold.h",
"../../../src/BulletCollision/Gimpact/btGImpactShape.h",
"../../../src/BulletCollision/CollisionShapes/btConvexHullShape.h",
"../../../src/BulletCollision/CollisionDispatch/btCollisionObject.h",
"../../../src/BulletDynamics/ConstraintSolver/btContactSolverInfo.h",
"../../../src/BulletDynamics/Dynamics/btDynamicsWorld.h",
"../../../src/BulletDynamics/Dynamics/btRigidBody.h",
"../../../src/BulletDynamics/ConstraintSolver/btTypedConstraint.h",
"../../../src/BulletDynamics/ConstraintSolver/btPoint2PointConstraint.h",
"../../../src/BulletDynamics/ConstraintSolver/btHingeConstraint.h",
"../../../src/BulletDynamics/ConstraintSolver/btConeTwistConstraint.h",
"../../../src/BulletDynamics/ConstraintSolver/btGeneric6DofConstraint.h",
"../../../src/BulletDynamics/ConstraintSolver/btGeneric6DofSpringConstraint.h",
"../../../src/BulletDynamics/ConstraintSolver/btGeneric6DofSpring2Constraint.h",
"../../../src/BulletDynamics/ConstraintSolver/btSliderConstraint.h",
"../../../src/BulletDynamics/ConstraintSolver/btGearConstraint.h",
"../../../src/BulletSoftBody/btSoftBodyData.h",
"../../../src/BulletDynamics/Featherstone/btMultiBody.h",
"../../../src/BulletDynamics/Featherstone/btMultiBodyLinkCollider.h",
// empty string to indicate end of includefiles
""};
void *malloc_and_setzero(int numbytes)
{
char *buf = (char *)malloc(numbytes);
memset(buf, 0, numbytes);
return buf;
}
int maxdata = 500000, maxnr = 50000;
int nr_names = 0;
int nr_types = 0;
int nr_structs = 0;
char **names, *namedata; /* at adress names[a] is string a */
char **types, *typedata; /* at adress types[a] is string a */
short *typelens; /* at typelens[a] is de length of type a */
short *alphalens; /* contains sizes as they are calculated on the DEC Alpha (64 bits) */
short **structs, *structdata; /* at sp= structs[a] is the first adress of a struct definition
sp[0] is type number
sp[1] is amount of elements
sp[2] sp[3] is typenr, namenr (etc) */
/*
* debugSDNA:
* - 0 = no output, except errors
* - 1 = detail actions
* - 2 = full trace, tell which names and types were found
* - 4 = full trace, plus all gritty details
*/
int debugSDNA = 0;
int additional_slen_offset;
/* ************************************************************************** */
/* Functions */
/* ************************************************************************** */
/**
* Add type <str> to struct indexed by <len>, if it was not yet found.
*/
int add_type(char *str, int len);
/**
* Add variable <str> to
*/
int add_name(char *str);
/**
* Search whether this structure type was already found, and if not,
* add it.
*/
short *add_struct(int namecode);
/**
* Remove comments from this buffer. Assumes that the buffer refers to
* ascii-code text.
*/
int preprocess_include(char *maindata, int len);
/**
* Scan this file for serializable types.
*/
int convert_include(char *filename);
/**
* Determine how many bytes are needed for an array.
*/
int arraysize(char *astr, int len);
/**
* Determine how many bytes are needed for each struct.
*/
static int calculate_structlens(int);
/**
* Construct the DNA.c file
*/
void dna_write(FILE *file, void *pntr, int size);
/**
* Report all structures found so far, and print their lenghts.
*/
void printStructLenghts(void);
/* ************************************************************************** */
/* Implementation */
/* ************************************************************************** */
/* ************************* MAKEN DNA ********************** */
int add_type(char *str, int len)
{
int nr;
char *cp;
if (str[0] == 0) return -1;
/* search through type array */
for (nr = 0; nr < nr_types; nr++)
{
if (strcmp(str, types[nr]) == 0)
{
if (len)
{
typelens[nr] = len;
alphalens[nr] = len;
}
return nr;
}
}
/* append new type */
if (nr_types == 0)
cp = typedata;
else
{
cp = types[nr_types - 1] + strlen(types[nr_types - 1]) + 1;
}
strcpy(cp, str);
types[nr_types] = cp;
typelens[nr_types] = len;
alphalens[nr_types] = len;
if (nr_types >= maxnr)
{
printf("too many types\n");
return nr_types - 1;
;
}
nr_types++;
return nr_types - 1;
}
/**
*
* Because of the weird way of tokenizing, we have to 'cast' function
* pointers to ... (*f)(), whatever the original signature. In fact,
* we add name and type at the same time... There are two special
* cases, unfortunately. These are explicitly checked.
*
* */
int add_name(char *str)
{
int nr, i, j, k;
char *cp;
char buf[255]; /* stupid limit, change it :) */
char *name;
additional_slen_offset = 0;
if ((str[0] == 0) /* || (str[1]==0) */) return -1;
if (str[0] == '(' && str[1] == '*')
{
if (debugSDNA > 3) printf("\t\t\t\t*** Function pointer found\n");
/* functionpointer: transform the type (sometimes) */
i = 0;
j = 0;
while (str[i] != ')')
{
buf[i] = str[i];
i++;
}
/* Another number we need is the extra slen offset. This extra
* offset is the overshoot after a space. If there is no
* space, no overshoot should be calculated. */
j = i; /* j at first closing brace */
if (debugSDNA > 3) printf("first brace after offset %d\n", i);
j++; /* j beyond closing brace ? */
while ((str[j] != 0) && (str[j] != ')'))
{
if (debugSDNA > 3) printf("seen %c ( %d) \n", str[j], str[j]);
j++;
}
if (debugSDNA > 3) printf("seen %c ( %d) \n", str[j], str[j]);
if (debugSDNA > 3) printf("special after offset %d\n", j);
if (str[j] == 0)
{
if (debugSDNA > 3) printf("offsetting for space\n");
/* get additional offset */
k = 0;
while (str[j] != ')')
{
j++;
k++;
}
if (debugSDNA > 3) printf("extra offset %d\n", k);
additional_slen_offset = k;
}
else if (str[j] == ')')
{
if (debugSDNA > 3) printf("offsetting for brace\n");
; /* don't get extra offset */
}
else
{
printf("Error during tokening function pointer argument list\n");
}
/*
* Put )(void) at the end? Maybe )(). Should check this with
* old sdna. Actually, sometimes )(), sometimes )(void...)
* Alas.. such is the nature of braindamage :(
*
* Sorted it out: always do )(), except for headdraw and
* windraw, part of ScrArea. This is important, because some
* linkers will treat different fp's differently when called
* !!! This has to do with interference in byte-alignment and
* the way args are pushed on the stack.
*
* */
buf[i] = 0;
if (debugSDNA > 3) printf("Name before chomping: %s\n", buf);
if ((strncmp(buf, "(*headdraw", 10) == 0) || (strncmp(buf, "(*windraw", 9) == 0))
{
buf[i] = ')';
buf[i + 1] = '(';
buf[i + 2] = 'v';
buf[i + 3] = 'o';
buf[i + 4] = 'i';
buf[i + 5] = 'd';
buf[i + 6] = ')';
buf[i + 7] = 0;
}
else
{
buf[i] = ')';
buf[i + 1] = '(';
buf[i + 2] = ')';
buf[i + 3] = 0;
}
/* now precede with buf*/
if (debugSDNA > 3) printf("\t\t\t\t\tProposing fp name %s\n", buf);
name = buf;
}
else
{
/* normal field: old code */
name = str;
}
/* search name array */
for (nr = 0; nr < nr_names; nr++)
{
if (strcmp(name, names[nr]) == 0)
{
return nr;
}
}
/* append new type */
if (nr_names == 0)
cp = namedata;
else
{
cp = names[nr_names - 1] + strlen(names[nr_names - 1]) + 1;
}
strcpy(cp, name);
names[nr_names] = cp;
if (nr_names >= maxnr)
{
printf("too many names\n");
return nr_names - 1;
}
nr_names++;
return nr_names - 1;
}
short *add_struct(int namecode)
{
int len;
short *sp;
if (nr_structs == 0)
{
structs[0] = structdata;
}
else
{
sp = structs[nr_structs - 1];
len = sp[1];
structs[nr_structs] = sp + 2 * len + 2;
}
sp = structs[nr_structs];
sp[0] = namecode;
if (nr_structs >= maxnr)
{
printf("too many structs\n");
return sp;
}
nr_structs++;
return sp;
}
int preprocess_include(char *maindata, int len)
{
int a, newlen, comment = 0;
char *cp, *temp, *md;
temp = (char *)malloc_and_setzero(len);
memcpy(temp, maindata, len);
// remove all c++ comments
/* replace all enters/tabs/etc with spaces */
cp = temp;
a = len;
comment = 0;
while (a--)
{
if (cp[0] == '/' && cp[1] == '/')
{
comment = 1;
}
else if (*cp < 32)
{
comment = 0;
}
if (comment || *cp < 32 || *cp > 128) *cp = 32;
cp++;
}
/* data from temp copy to maindata, remove comments and double spaces */
cp = temp;
md = maindata;
newlen = 0;
comment = 0;
a = len;
while (a--)
{
if (cp[0] == '/' && cp[1] == '*')
{
comment = 1;
cp[0] = cp[1] = 32;
}
if (cp[0] == '*' && cp[1] == '/')
{
comment = 0;
cp[0] = cp[1] = 32;
}
/* do not copy when: */
if (comment)
;
else if (cp[0] == ' ' && cp[1] == ' ')
;
else if (cp[-1] == '*' && cp[0] == ' ')
; /* pointers with a space */
else
{
md[0] = cp[0];
md++;
newlen++;
}
cp++;
}
free(temp);
return newlen;
}
static void *read_file_data(char *filename, int *len_r)
{
#ifdef WIN32
FILE *fp = fopen(filename, "rb");
#else
FILE *fp = fopen(filename, "r");
#endif
void *data;
if (!fp)
{
*len_r = -1;
return NULL;
}
fseek(fp, 0L, SEEK_END);
*len_r = ftell(fp);
fseek(fp, 0L, SEEK_SET);
data = malloc_and_setzero(*len_r);
if (!data)
{
*len_r = -1;
fclose(fp);
return NULL;
}
if (fread(data, *len_r, 1, fp) != 1)
{
*len_r = -1;
free(data);
fclose(fp);
return NULL;
}
fclose(fp);
return data;
}
const char *skipStructTypes[] =
{
"btContactSolverInfoData",
"btRigidBodyConstructionInfo",
"Euler",
"btConstraintInfo2",
"btConstraintSetting",
"btTriangleInfo",
""};
int skipStruct(const char *structType)
{
int i = 0;
while (strlen(skipStructTypes[i]))
{
if (strcmp(structType, skipStructTypes[i]) == 0)
{
return 1;
}
i++;
}
return 0;
}
int convert_include(char *filename)
{
/* read include file, skip structs with a '#' before it.
store all data in temporal arrays.
*/
int filelen, count, overslaan, slen, type, name, strct;
short *structpoin, *sp;
char *maindata, *mainend, *md, *md1;
md = maindata = (char *)read_file_data(filename, &filelen);
if (filelen == -1)
{
printf("Can't read file %s\n", filename);
return 1;
}
filelen = preprocess_include(maindata, filelen);
mainend = maindata + filelen - 1;
/* we look for '{' and then back to 'struct' */
count = 0;
overslaan = 0;
while (count < filelen)
{
/* code for skipping a struct: two hashes on 2 lines. (preprocess added a space) */
if (md[0] == '#' && md[1] == ' ' && md[2] == '#')
{
overslaan = 1;
}
if (md[0] == '{')
{
md[0] = 0;
if (overslaan)
{
overslaan = 0;
}
else
{
if (md[-1] == ' ') md[-1] = 0;
md1 = md - 2;
while (*md1 != 32) md1--; /* to beginning of word */
md1++;
/* we've got a struct name when... */
if (strncmp(md1 - 7, "struct", 6) == 0)
{
if (!skipStruct(md1))
{
strct = add_type(md1, 0);
structpoin = add_struct(strct);
sp = structpoin + 2;
if (debugSDNA > 1) printf("\t|\t|-- detected struct %s\n", types[strct]);
/* first lets make it all nice strings */
md1 = md + 1;
while (*md1 != '}')
{
if (md1 > mainend) break;
if (*md1 == ',' || *md1 == ' ') *md1 = 0;
md1++;
}
/* read types and names until first character that is not '}' */
md1 = md + 1;
while (*md1 != '}')
{
if (md1 > mainend) break;
/* skip when it says 'struct' or 'unsigned' or 'const' */
if (*md1)
{
if (strncmp(md1, "struct", 6) == 0) md1 += 7;
if (strncmp(md1, "unsigned", 8) == 0) md1 += 9;
if (strncmp(md1, "const", 5) == 0) md1 += 6;
/* we've got a type! */
type = add_type(md1, 0);
if (debugSDNA > 1) printf("\t|\t|\tfound type %s (", md1);
md1 += strlen(md1);
/* read until ';' */
while (*md1 != ';')
{
if (md1 > mainend) break;
if (*md1)
{
/* We've got a name. slen needs
* correction for function
* pointers! */
slen = (int)strlen(md1);
if (md1[slen - 1] == ';')
{
md1[slen - 1] = 0;
name = add_name(md1);
slen += additional_slen_offset;
sp[0] = type;
sp[1] = name;
if ((debugSDNA > 1) && (names[name] != 0)) printf("%s |", names[name]);
structpoin[1]++;
sp += 2;
md1 += slen;
break;
}
name = add_name(md1);
slen += additional_slen_offset;
sp[0] = type;
sp[1] = name;
if ((debugSDNA > 1) && (names[name] != 0)) printf("%s ||", names[name]);
structpoin[1]++;
sp += 2;
md1 += slen;
}
md1++;
}
if (debugSDNA > 1) printf(")\n");
}
md1++;
}
}
}
}
}
count++;
md++;
}
free(maindata);
return 0;
}
int arraysize(char *astr, int len)
{
int a, mul = 1;
char str[100], *cp = 0;
memcpy(str, astr, len + 1);
for (a = 0; a < len; a++)
{
if (str[a] == '[')
{
cp = &(str[a + 1]);
}
else if (str[a] == ']' && cp)
{
str[a] = 0;
mul *= atoi(cp);
}
}
return mul;
}
static int calculate_structlens(int firststruct)
{
int a, b, len, alphalen, unknown = nr_structs, lastunknown, structtype, type, mul, namelen;
short *sp, *structpoin;
char *cp;
int has_pointer, dna_error = 0;
while (unknown)
{
lastunknown = unknown;
unknown = 0;
/* check all structs... */
for (a = 0; a < nr_structs; a++)
{
structpoin = structs[a];
structtype = structpoin[0];
/* when length is not known... */
if (typelens[structtype] == 0)
{
sp = structpoin + 2;
len = 0;
alphalen = 0;
has_pointer = 0;
/* check all elements in struct */
for (b = 0; b < structpoin[1]; b++, sp += 2)
{
type = sp[0];
cp = names[sp[1]];
namelen = (int)strlen(cp);
/* is it a pointer or function pointer? */
if (cp[0] == '*' || cp[1] == '*')
{
has_pointer = 1;
/* has the name an extra length? (array) */
mul = 1;
if (cp[namelen - 1] == ']') mul = arraysize(cp, namelen);
/* 4-8 aligned/ */
if (sizeof(void *) == 4)
{
if (len % 4)
{
printf("Align pointer error in struct (len4): %s %s\n", types[structtype], cp);
dna_error = 1;
}
}
else
{
if (len % 8)
{
printf("Align pointer error in struct (len8): %s %s\n", types[structtype], cp);
dna_error = 1;
}
}
if (alphalen % 8)
{
printf("Align pointer error in struct (alphalen8): %s %s\n", types[structtype], cp);
dna_error = 1;
}
len += sizeof(void *) * mul;
alphalen += 8 * mul;
}
else if (typelens[type])
{
/* has the name an extra length? (array) */
mul = 1;
if (cp[namelen - 1] == ']') mul = arraysize(cp, namelen);
/* struct alignment */
if (type >= firststruct)
{
if (sizeof(void *) == 8 && (len % 8))
{
printf("Align struct error: %s %s\n", types[structtype], cp);
dna_error = 1;
}
}
/* 2-4 aligned/ */
if (typelens[type] > 3 && (len % 4))
{
printf("Align 4 error in struct: %s %s (add %d padding bytes)\n", types[structtype], cp, len % 4);
dna_error = 1;
}
else if (typelens[type] == 2 && (len % 2))
{
printf("Align 2 error in struct: %s %s (add %d padding bytes)\n", types[structtype], cp, len % 2);
dna_error = 1;
}
len += mul * typelens[type];
alphalen += mul * alphalens[type];
}
else
{
len = 0;
alphalen = 0;
break;
}
}
if (len == 0)
{
unknown++;
}
else
{
typelens[structtype] = len;
alphalens[structtype] = alphalen;
// two ways to detect if a struct contains a pointer:
// has_pointer is set or alphalen != len
if (has_pointer || alphalen != len)
{
if (alphalen % 8)
{
printf("alphalen = %d len = %d\n", alphalen, len);
printf("Sizeerror 8 in struct: %s (add %d bytes)\n", types[structtype], alphalen % 8);
dna_error = 1;
}
}
if (len % 4)
{
printf("Sizeerror 4 in struct: %s (add %d bytes)\n", types[structtype], len % 4);
dna_error = 1;
}
}
}
}
if (unknown == lastunknown) break;
}
if (unknown)
{
printf("ERROR: still %d structs unknown\n", unknown);
if (debugSDNA)
{
printf("*** Known structs : \n");
for (a = 0; a < nr_structs; a++)
{
structpoin = structs[a];
structtype = structpoin[0];
/* length unknown */
if (typelens[structtype] != 0)
{
printf(" %s\n", types[structtype]);
}
}
}
printf("*** Unknown structs : \n");
for (a = 0; a < nr_structs; a++)
{
structpoin = structs[a];
structtype = structpoin[0];
/* length unkown yet */
if (typelens[structtype] == 0)
{
printf(" %s\n", types[structtype]);
}
}
}
return (dna_error);
}
#define MAX_DNA_LINE_LENGTH 20
void dna_write(FILE *file, void *pntr, int size)
{
static int linelength = 0;
int i;
char *data;
data = (char *)pntr;
for (i = 0; i < size; i++)
{
fprintf(file, "char(%d),", data[i]);
linelength++;
if (linelength >= MAX_DNA_LINE_LENGTH)
{
fprintf(file, "\n");
linelength = 0;
}
}
}
void printStructLenghts(void)
{
int a, unknown = nr_structs, lastunknown, structtype;
short *structpoin;
printf("\n\n*** All detected structs:\n");
while (unknown)
{
lastunknown = unknown;
unknown = 0;
/* check all structs... */
for (a = 0; a < nr_structs; a++)
{
structpoin = structs[a];
structtype = structpoin[0];
printf("\t%s\t:%d\n", types[structtype], typelens[structtype]);
}
}
printf("*** End of list\n");
}
int make_structDNA(char *baseDirectory, FILE *file)
{
int len, i;
short *sp;
/* str contains filenames. Since we now include paths, I stretched */
/* it a bit. Hope this is enough :) -nzc- */
char str[SDNA_MAX_FILENAME_LENGTH], *cp;
int firststruct;
if (debugSDNA > -1)
{
fflush(stdout);
printf("Running makesdna at debug level %d\n", debugSDNA);
}
/* the longest known struct is 50k, so we assume 100k is sufficent! */
namedata = (char *)malloc_and_setzero(maxdata);
typedata = (char *)malloc_and_setzero(maxdata);
structdata = (short *)malloc_and_setzero(maxdata);
/* a maximum of 5000 variables, must be sufficient? */
names = (char **)malloc_and_setzero(sizeof(char *) * maxnr);
types = (char **)malloc_and_setzero(sizeof(char *) * maxnr);
typelens = (short *)malloc_and_setzero(sizeof(short) * maxnr);
alphalens = (short *)malloc_and_setzero(sizeof(short) * maxnr);
structs = (short **)malloc_and_setzero(sizeof(short) * maxnr);
/* insertion of all known types */
/* watch it: uint is not allowed! use in structs an unsigned int */
add_type("char", 1); /* 0 */
add_type("uchar", 1); /* 1 */
add_type("short", 2); /* 2 */
add_type("ushort", 2); /* 3 */
add_type("int", 4); /* 4 */
add_type("long", 4); /* 5 */ /* should it be 8 on 64 bits? */
add_type("ulong", 4); /* 6 */
add_type("float", 4); /* 7 */
add_type("double", 8); /* 8 */
add_type("void", 0); /* 9 */
// the defines above shouldn't be output in the padding file...
firststruct = nr_types;
/* add all include files defined in the global array */
/* Since the internal file+path name buffer has limited length, I do a */
/* little test first... */
/* Mind the breaking condition here! */
if (debugSDNA) printf("\tStart of header scan:\n");
for (i = 0; strlen(includefiles[i]); i++)
{
sprintf(str, "%s%s", baseDirectory, includefiles[i]);
if (debugSDNA) printf("\t|-- Converting %s\n", str);
if (convert_include(str))
{
return (1);
}
}
if (debugSDNA) printf("\tFinished scanning %d headers.\n", i);
if (calculate_structlens(firststruct))
{
// error
return (1);
}
/* FOR DEBUG */
if (debugSDNA > 1)
{
int a, b;
/* short *elem; */
short num_types;
printf("nr_names %d nr_types %d nr_structs %d\n", nr_names, nr_types, nr_structs);
for (a = 0; a < nr_names; a++)
{
printf(" %s \n", names[a]);
}
printf("\n");
sp = typelens;
for (a = 0; a < nr_types; a++, sp++)
{
printf(" %s %d\n", types[a], *sp);
}
printf("\n");
for (a = 0; a < nr_structs; a++)
{
sp = structs[a];
printf(" struct %s elems: %d size: %d\n", types[sp[0]], sp[1], typelens[sp[0]]);
num_types = sp[1];
sp += 2;
/* ? num_types was elem? */
for (b = 0; b < num_types; b++, sp += 2)
{
printf(" %s %s\n", types[sp[0]], names[sp[1]]);
}
}
}
/* file writing */
if (debugSDNA > -1) printf("Writing file ... ");
if (nr_names == 0 || nr_structs == 0)
;
else
{
strcpy(str, "SDNA");
dna_write(file, str, 4);
/* write names */
strcpy(str, "NAME");
dna_write(file, str, 4);
len = nr_names;
dna_write(file, &len, 4);
/* calculate size of datablock with strings */
cp = names[nr_names - 1];
cp += strlen(names[nr_names - 1]) + 1; /* +1: null-terminator */
len = (btintptr_t)(cp - (char *)names[0]);
len = (len + 3) & ~3;
dna_write(file, names[0], len);
/* write TYPES */
strcpy(str, "TYPE");
dna_write(file, str, 4);
len = nr_types;
dna_write(file, &len, 4);
/* calculate datablock size */
cp = types[nr_types - 1];
cp += strlen(types[nr_types - 1]) + 1; /* +1: null-terminator */
len = (btintptr_t)(cp - (char *)types[0]);
len = (len + 3) & ~3;
dna_write(file, types[0], len);
/* WRITE TYPELENGTHS */
strcpy(str, "TLEN");
dna_write(file, str, 4);
len = 2 * nr_types;
if (nr_types & 1) len += 2;
dna_write(file, typelens, len);
/* WRITE STRUCTS */
strcpy(str, "STRC");
dna_write(file, str, 4);
len = nr_structs;
dna_write(file, &len, 4);
/* calc datablock size */
sp = structs[nr_structs - 1];
sp += 2 + 2 * (sp[1]);
len = (btintptr_t)((char *)sp - (char *)structs[0]);
len = (len + 3) & ~3;
dna_write(file, structs[0], len);
/* a simple dna padding test */
if (0)
{
FILE *fp;
int a;
fp = fopen("padding.c", "w");
if (fp == NULL)
;
else
{
// add all include files defined in the global array
for (i = 0; strlen(includefiles[i]); i++)
{
fprintf(fp, "#include \"%s%s\"\n", baseDirectory, includefiles[i]);
}
fprintf(fp, "main(){\n");
sp = typelens;
sp += firststruct;
for (a = firststruct; a < nr_types; a++, sp++)
{
if (*sp)
{
fprintf(fp, "\tif(sizeof(struct %s) - %d) printf(\"ALIGN ERROR:", types[a], *sp);
fprintf(fp, "%%d %s %d ", types[a], *sp);
fprintf(fp, "\\n\", sizeof(struct %s) - %d);\n", types[a], *sp);
}
}
fprintf(fp, "}\n");
fclose(fp);
}
}
/* end end padding test */
}
free(namedata);
free(typedata);
free(structdata);
free(names);
free(types);
free(typelens);
free(structs);
if (debugSDNA > -1) printf("done.\n");
return (0);
}
/* ************************* END MAKE DNA ********************** */
static void make_bad_file(char *file)
{
FILE *fp = fopen(file, "w");
fprintf(fp, "ERROR! Cannot make correct DNA.c file, STUPID!\n");
fclose(fp);
}
#ifndef BASE_HEADER
#define BASE_HEADER "../"
#endif
int main(int argc, char **argv)
{
// printf("btCollisionObject=%d\n",sizeof(btCollisionObject));
// printf("btCollisionObjectData=%d\n",sizeof(btCollisionObjectData));
// printf("btTransform=%d\n",sizeof(btTransform));
// printf("btTransformData=%d\n",sizeof(btTransformData));
//
// btCollisionObject* bla = new btCollisionObject();
// btCollisionObjectData* bla2 = new btCollisionObjectData();
//int offsetof(bla,m_hasAnisotropicFriction);
/*
btTransformData m_worldTransform;
btTransform m_interpolationWorldTransform;
btVector3 m_interpolationLinearVelocity;
btVector3 m_interpolationAngularVelocity;
btVector3 m_anisotropicFriction;
bool m_hasAnisotropicFriction;
btScalar m_contactProcessingThreshold;
btBroadphaseProxy *m_broadphaseHandle;
btCollisionShape *m_collisionShape;
btCollisionShape *m_rootCollisionShape;
int m_collisionFlags;
int m_islandTag1;
int m_companionId;
int m_activationState1;
btScalar m_deactivationTime;
btScalar m_friction;
btScalar m_restitution;
void* m_userObjectPointer;
int m_internalType;
btScalar m_hitFraction;
btScalar m_ccdSweptSphereRadius;
btScalar m_ccdMotionThreshold;
bool m_checkCollideWith;
char m_pad[7];
*/
FILE *file;
int return_status = 0;
if (argc != 2 && argc != 3)
{
printf("Usage: %s outfile.c [base directory]\n", argv[0]);
return_status = 1;
}
else
{
file = fopen(argv[1], "w");
if (!file)
{
printf("Unable to open file: %s\n", argv[1]);
return_status = 1;
}
else
{
char baseDirectory[256];
if (argc == 3)
{
strcpy(baseDirectory, argv[2]);
}
else
{
strcpy(baseDirectory, BASE_HEADER);
}
if (sizeof(void *) == 8)
{
fprintf(file, "char sBulletDNAstr64[]= {\n");
}
else
{
fprintf(file, "char sBulletDNAstr[]= {\n");
}
if (make_structDNA(baseDirectory, file))
{
// error
fclose(file);
make_bad_file(argv[1]);
return_status = 1;
}
else
{
fprintf(file, "};\n");
if (sizeof(void *) == 8)
{
fprintf(file, "int sBulletDNAlen64= sizeof(sBulletDNAstr64);\n");
}
else
{
fprintf(file, "int sBulletDNAlen= sizeof(sBulletDNAstr);\n");
}
fclose(file);
}
}
}
return (return_status);
}
/* end of list */
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